Regarding the optional qualifier I'll go ahead like Willy's suggestion in the thread http://forums.ldraw.org/showthread.php?t...70#pid6070.
I see the set number and the optional qualifier as a unit and therefore my app will force the files inside the mpd to have the same "setnumber" "optional qualifier" combination as the mpd file itself.
I like to implement that in this way, because I can think about scenes that are for example build with many cars from different sets. If I then have the optional qualifier also be used for the mpd I can directly see and link to the correct mpd. If we do not use the optional qualifier for the mpd file we have no chance to generate automatically any link to the correct file.
I see the set number and the optional qualifier as a unit and therefore my app will force the files inside the mpd to have the same "setnumber" "optional qualifier" combination as the mpd file itself.
I like to implement that in this way, because I can think about scenes that are for example build with many cars from different sets. If I then have the optional qualifier also be used for the mpd I can directly see and link to the correct mpd. If we do not use the optional qualifier for the mpd file we have no chance to generate automatically any link to the correct file.